/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.guorui.web;


import java.io.IOException;
import java.io.PrintWriter;
import javax.annotation.Resource;
import javax.inject.Inject;
import javax.jms.JMSConnectionFactory;
import javax.jms.JMSContext;
import javax.jms.JMSException;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.guorui.ejb.Book;

/**
 *
 * @author lenovo
 */
@WebServlet(name = "BookRegister", urlPatterns = {"/BookRegister"})
public class BookRegister extends HttpServlet {

    @Resource(mappedName = "jms/mid_bigwork")
    private Queue mid_bigwork;

    @Inject
    @JMSConnectionFactory("java:comp/DefaultJMSConnectionFactory")
    private JMSContext context;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet BookRegister</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>注册图书信息如下</h1>");
            
            String ISBN = null, title = null, author, publisher;
            double price;

            ISBN = request.getParameter("isbn");
            title = request.getParameter("title");
            author = request.getParameter("author");
            publisher = request.getParameter("publisher");
            price = Float.parseFloat(request.getParameter("price"));
            out.println("<p>ISBN = " + ISBN + "\ntitle = " + title 
                    + "\nauthor = " + author + "\npublisher = " + publisher
                    + "\nprice = " + price + "</p>");
            
            if(ISBN != null && title != null){

                try{
                    Book book = new Book();
                    book.setIsbn(ISBN);
                    book.setAuthor(author);
                    book.setPublisher(publisher);
                    book.setPrice(price);

                    ObjectMessage message = this.context.createObjectMessage();
                    message.setObject(book);
                    this.sendJMSMessageToMid_bigwork(message);
//                    response.sendRedirect("ListBooks");
                }catch(JMSException e){
                    e.printStackTrace();
                }
            }
            
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

    private void sendJMSMessageToMid_bigwork(ObjectMessage messageData) {
        context.createProducer().send(mid_bigwork, messageData);
    }

}
